Full-polyester sanded cloth paperless digital direct spray printing process

Abstract

The invention provides a full-polyester sanded cloth paperless digital direct spray printing process and relates to the field. The full-polyester sanded cloth paperless digital direct spray printing process comprises the following steps: modulating sizing slurry; dipping-rolling and sizing: performing twice-dipping and twice-rolling on full-polyester sanded cloth in the prepared slurry, wherein the slurry rolling rate is 55-65 percent; primary drying: performing primary drying; digital spray printing: making a spray printing template through computer digital drawing, and then directly sprayinga drawn pattern with high-temperature dispersible ink through a digital color printing machine, wherein the environment temperature during spray printing is 22-30 DEG C, the relative humidity is 50-80 percent, a spray printing mode is a medium speed mode, the spray printing speed is 60-75 m<2>/h, the spray printing precision is 360*800 dpi, and the height of a spray head is 3-4 mm; performing secondary drying; detecting that the printing precision, the effect and the color fastness test are qualified; moreover, as no paper or water is used, the production cost is greatly reduced, and the economic benefits and the social benefits are great.

Description

technical field [0001] The invention relates to the technical field of printing, in particular to a paperless digital direct-injection printing process for all-polyester brushed cloth. Background technique [0002] At present, with the transformation and upgrading of the textile printing and dyeing industry, digital printing has ushered in a period of great development opportunities. Digital printing usually uses reactive dyes for cotton fabrics, and uses direct fabric injection technology. The process is relatively mature, and it is difficult to have other solutions to replace it. For polyester fabrics, digital printing usually uses disperse dyes and heat transfer technology after printing paper. Now, in the tens of millions of meters of polyester digital printing output every year, the paper transfer method accounts for more than 90% of the market share. The process is mature and stable. [0003] The paper transfer method is a simple and mature process, but it consumes te...

AI Technical Summary

Problems solved by technology

[0003] The paper transfer method is a simple and mature process, but it consumes tens of thousands of tons of paper every year. Its advantages are that the patterns are clear, water is avoided in the production process, and it can reduce emissions for printing factories. However, the manufacture of paper also produces a large amount of waste. Pollution has not fundamentally solved the problem. Only less than 10% of the products, and some people use the method of direct spraying without paper, but because the pattern is not clear enough, the process is complicated, and the production cost is high. Higher, so it has been unable to replace the mainstream method of paper transfer

[0004] Especially for the brushed cloth used in a large number of exports in the home textile industry, the total annual market capacity is on the order of hundreds of millions of meters, of which digital printing is growing at a double rate every year, gradually squeezing out the tradition of high pollution, high energy consumption and low efficiency. The market share of printing, because disperse dyes are nano-scale micro-powder structure, after the fabric is sanded and then digitally printed with disperse dyes, the micro-powder of disperse dyes will be suspended between the fine hairs of the sanded cloth, and staining is very easy to occur during the production process Problem, so at present, 100% of digital printing on brushed cloth adopts the method of paper transfer, and the printing cost is subject to the price of paper, which has always been high, which affects the mass use and promotion speed of digital printing

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